president obama use ad drone to kill him in the wilds of yemen. if you, if you fill eight yourself with enemy forces and you go to war against american citizens and you kill americans will fully and you do so on behalf of a movement or enemy forces then indeed you can be considered an enemy combatant. being a enemy combatant simply because you're an american citizen. if in world war ii you went over and joined nazi forces were you not a enemy combatant? of course you were. . . >> he didn't treat those terrible tragedies as access war, but appropriately treated them as heinous criminal acts to be investigated, prosecuted, and appropriately punishes. >> host: al-alwaki was an american citizen, kimed on orders of president obama. did president obama violate the constitution by doing that? >> guest: well, actually, we have a lawsuit in which we are seeking to get answers from the administration about what legal standards they used and invoked. >> see the rest of this segment at c-span.org. live now to today's white house briefing. here's spokesman jay